emscripten-core/emscripten

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Emscripten: An LLVM-to-WebAssembly Compiler

Stars: 27.6k
Forks: 3.6k
Open beginner issues: 0
Indexed issues: 2k
Avg merge: 1d 16h
Merged PRs (30d): 117

Dominant language: C++
License: No license data
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

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2038 open issues indexed

can OpenAL used in webworker? Open

emscripten-core/emscripten#16639 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Question about life cycle of emscripten::val returned from temporary vector Open

embind

emscripten-core/emscripten#16641 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
How to change the location of the .data file. Open

emscripten-core/emscripten#16643 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
emar behavior isn't consistent across operating systems Open

emscripten-core/emscripten#16649 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Pthreads do not work without EXIT_RUNTIME=1 as of 3.1.8 Open

emscripten-core/emscripten#16654 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Is there any way to describe C++ global variables or global functions in an idl file? Open

emscripten-core/emscripten#16655 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
HTML minification modifies content re: whitespace Open

emscripten-core/emscripten#16656 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support enabling native exception support at compile time and disabling it at link time Open

emscripten-core/emscripten#16665 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Dynamic loading modules which come with JS glue code Open

emscripten-core/emscripten#16668 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
WasmFS: `newselect` system call Open

wasmfs

emscripten-core/emscripten#16671 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Pausing all threads Open

emscripten-core/emscripten#16676 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Access translated GL shaders? Open

emscripten-core/emscripten#16683 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
glBufferData and glBufferSubData failing in workers when they used to not Open

emscripten-core/emscripten#16688 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Feature request: MAIN_THREAD_EM_ASYNC_JS Open

good first bug help wanted

emscripten-core/emscripten#16694 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
"undefined symbol: jsSetOnAbort" error during linking but LLVM shows the symbol is defined. Open

emscripten-core/emscripten#16697 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
select will timeout even if timeout is set to NULL Open

emscripten-core/emscripten#16704 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Dynamic linking emscripten::val(..) fails in SIDE_MODULE Open

embind

emscripten-core/emscripten#16711 · 13 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Question regarding dynamic library : SIDE and MAIN module Open

emscripten-core/emscripten#16719 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Fetch API: --proxy-to-worker + -sUSE_PTHREADS cannot be used together Open

docs

emscripten-core/emscripten#16721 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Unify two different runtime source map parsing methods Open

emscripten-core/emscripten#16731 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Implement Direct Sockets API Open

help wanted

emscripten-core/emscripten#16737 · 5 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
MEMFS corrupts binary files when lazy loading in node.js Open

emscripten-core/emscripten#16740 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
To use dlopen, you need to use Emscripten's linking support, see https://github.com/kripken/emscripten/wiki/Linking Open

emscripten-core/emscripten#16741 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
FS_createPreloadedFile not supported in MEMFS under node.js, but could easily be Open

good first bug help wanted

emscripten-core/emscripten#16742 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
fetch/idb_store.cpp and fetch/idb_delete.cpp are currently failing due to IDB database only existing on main thread Open

emscripten-core/emscripten#16746 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
stdout not suitable for heavy data streaming Open

emscripten-core/emscripten#16755 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Cannot Rendering and calling to Fetch API Sync in the main thread Open

emscripten-core/emscripten#16760 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[Docs] Document that Worker are never destroyed (even if pthreads end) Open

docs good first bug help wanted

emscripten-core/emscripten#16761 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
SIDE_MODULE=2 deletes functions of exported class that are used and called Open

emscripten-core/emscripten#16762 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Is it possible to transfer javascript to LLVM IR with emscripten? Open

emscripten-core/emscripten#16772 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add a graceful version of dlopen()? Open

emscripten-core/emscripten#16790 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
MODULARIZE + WASM=0 + pthreads does not work Open

emscripten-core/emscripten#16794 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[BUG] missing update HEAP's DateView in updateGlobalBufferAndViews Open

emscripten-core/emscripten#16800 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Regression: NODERAWFS doesn't seem to be releasing file descriptors Open

emscripten-core/emscripten#16806 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Getting networking asynchrony to work with Emscripten Open

emscripten-core/emscripten#16811 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
c-string parameter of js->c callback function is corrupt unless literal Open

emscripten-core/emscripten#16814 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
emscripten::val::call in SIDE_MODULE fails with 'BindingError' unknown type 'N10emscripten3valE' Open

emscripten-core/emscripten#16846 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
PROXYFS has a bug Open

emscripten-core/emscripten#16857 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
PATH.normalize is incredibly expensive. Open

good first bug help wanted

emscripten-core/emscripten#16858 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Bug in page:C++ exceptions support Open

docs good first bug help wanted

emscripten-core/emscripten#16859 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Firefox browser Fetch tests flaky Open

emscripten-core/emscripten#16868 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Return code from sendto, etc handled incorrectly in websocket_to_posix_proxy Open

emscripten-core/emscripten#16897 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Zlib autoconf build causes flaky test failures Open

emscripten-core/emscripten#16908 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Question: How to bind a values of type signed long long? Open

emscripten-core/emscripten#16927 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Can't get it to work on replit Open

emscripten-core/emscripten#16936 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Runtime does not exit after sleep with ASYNCIFY + pthread + EXIT_RUNTIME Open

emscripten-core/emscripten#16940 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Use a single allocation for a threads TLS + stack Open

emscripten-core/emscripten#16948 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
EMSDK support for chrome extension manifest version v3 Open

emscripten-core/emscripten#16969 · 11 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
wasm64 + EM_JS requires special handling for pointer types (and long and size_t) Open

wasm64

emscripten-core/emscripten#16975 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Fail to emscripten_sleep(0) after emscripten_webgl_commit_frame() with -sOFFSCREENCANVAS_SUPPORT -sASYNCIFY -sASSERTIONS Open

emscripten-core/emscripten#16983 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

emscripten-core/emscripten

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